liberation
Freedom from something that was holding you back.
Liberation means being freed from something that has been holding you back or keeping you trapped. When prisoners of war are liberated, they're released from captivity and can finally go home. When a city is liberated during wartime, it means occupying forces have been driven out and the people can govern themselves again.
The word suggests more than just physical freedom. Someone might feel a sense of liberation after finishing a huge project that had consumed all their time, or after finally speaking up about something that had been bothering them. A student who struggled with math for years might experience liberation when a concept suddenly clicks and they realize they can solve problems confidently.
Liberation carries a feeling of relief and possibility: freedom from something difficult opens the door to living differently. When you're liberated from a fear of public speaking, you can share your ideas. When you're liberated from always worrying what others think, you can be yourself.
The related word liberating describes how freedom feels. Taking off heavy winter boots on a warm spring day feels liberating. So does finally organizing a messy desk where you couldn't find anything. It's that lightness you feel when a burden lifts.